Waveforms; System Part-1 - LG BD390 Service Manual

1. SYSTEM PART-1

1
7601 XTAL (27MHz)

WAVEFORMS

CLK27_XTALN
CLK27_XTALP
R691
5:B4 VDAC_CVBS
R621
75(1%)
DGND
3-62
R691
5:B4 VDAC_CVBS
R621
Close to 7601 and avoid heat sink
R518
18
X504
27MHz/18pFCL
C504
1 30pF
DGND
BCM7601 BGA 507Pin (21 x 21) Broadcom
IC201
7
IC606
THS7314
0 1
IN_CH1 OUT_CH1
2
OUT_CH2
IN_CH2
3
IN_CH3 OUT_CH3
R6B4
4
VS+
OPEN
DGND
C667
0.1uF
VCC_3V3_VIDEO
DGND
IC606
THS7314
0
1
IN_CH1 OUT_CH1
2
IN_CH2 OUT_CH2
3
IN_CH3 OUT_CH3
R6B4
4
VS+ GND
OPEN
DGND
R511
18
C518
30pF
J4
8 R632 75
CVBS
7
6
5
GND
C668
OPEN
DGND
DGND
VDAC_Y
5:B4
5:B4 VDAC_Pr
VDAC_Pb
5:B4
R606
R640
75(1%)
75(1%)
DGND
11
J4
8 R632 75
CVBS
7
6
5
C668
OPEN
R
75(1%